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Weather-proof type aluminium alloy overhead cable with composite resin sheath

A composite resin, overhead cable technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of cable conductor tensile fracture, insulation layer fracture failure, overhead cable short circuit, etc. Damage, avoid conductor breakage effect

Inactive Publication Date: 2016-06-15
ANHUI SHUANGCHENG WIRE & CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the humid environment in the south, overhead cables are prone to short-circuit caused by moisture. At the same time, because overhead cables are usually erected at a long distance, the two connection point brackets are easy to sag due to gravity. When the sagging state is maintained for a long time, it is easy to cause the inner conductor of the cable to stretch It may even cause the outer insulation layer of the conductor to break and fail, resulting in safety hazards such as short circuits.

Method used

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  • Weather-proof type aluminium alloy overhead cable with composite resin sheath

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, a weather-resistant aluminum alloy overhead cable with a composite resin sheath includes four conductors 101 stranded by aluminum alloys, and an environmentally friendly insulating protective layer 102 is respectively set on the outside of the four conductors 101. Between the conductor 101 of the environmental protection insulation protection layer 102 is filled with glass fiber filaments 104, the inner metal mesh 105 is set outside the environmental protection insulation protection layer 102, and the inner layer metal mesh 105 and the Glass fiber filaments 104 are filled between the environmental protection insulating protective layers 102, and a heat-insulating inner layer 103 is set outside the inner layer metal mesh 105, and an inner layer is set outside the heat-insulating inner layer 103. The eyelet layer 110, the outer eyelet layer 108 is set outside the inner eyelet layer 110, the halogen-free polyolefin insulation layer 109 is set out...

Embodiment 2

[0024] In order to improve the strength of the cable, this embodiment is based on the embodiment 1, preferably, aramid filaments are filled in the gaps in the middle of the four conductors 101 .

[0025] Further preferably, in order to improve the insulation performance, in this embodiment, a thermal insulation outer layer 106 is disposed between the inner eyelet layer 110 and the outer eyelet layer 108 .

[0026] In order to facilitate processing, in this embodiment, preferably, the heat-insulating outer layer 106 is made of halogen-free flame-retardant glued glass fiber tape coated with low-smoke and halogen-free materials.

[0027] Further preferably, in this embodiment, in order to improve the tensile performance of the cable, preferably, the inner eyelet layer 110 and the outer eyelet layer 108 are formed by helically winding sheet metal strips.

[0028] Further preferably, in order to prevent the inner metal ring layer and the outer metal ring layer from moving in the sa...

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Abstract

The invention discloses a weather-proof type aluminium alloy overhead cable with a composite resin sheath. The cable comprises four conductors stranded by aluminium alloy, wherein an environment-friendly insulating protection layer is arranged on the exterior of each conductor in a sleeving manner separately; the spaces between the conductors and the environment-friendly insulating protection layers are filled with glass fiber filaments; an inner layer metal net is arranged on the exteriors of the environment-friendly insulating protection layers in a sleeving manner; the space between the inner layer metal net and the environment-friendly insulating protection layers isfilled with glass fiber filaments; a thermal insulation inner layer is arranged on the exterior of the inner layer metal net in a sleeving manner; an inner layer metal ring layer is arranged on the exterior of the thermal insulation inner layer in a sleeving manner; an outer layer metal ring layer is arranged on the exterior of the inner layer metal ring layer in a sleeving manner; a halogen-free polyolefin insulating layer is arranged on the exterior of the outer layer metal ring layer in a sleeving manner; and thecomposite resin sheath is arranged on the exterior of the halogen-free polyolefin insulating layer in a sleeving manner. By adoption of the composite resin sheath, the external structure of the cable can be effectively protected and prevented from being damaged; and meanwhile, the composite resin is relatively light in weight, so that the cable weight can be lowered and high-altitude erection of the cable can be implemented conveniently.

Description

technical field [0001] The invention relates to a weather-resistant aluminum alloy overhead cable with a composite resin sheath. Background technique [0002] In the humid environment in the south, overhead cables are prone to short-circuit caused by moisture. At the same time, because overhead cables are usually erected at a long distance, the two connection point brackets are easy to sag due to gravity. When the sagging state is maintained for a long time, it is easy to cause the inner conductor of the cable to stretch It may even cause the outer insulation layer of the conductor to break and fail to cause safety hazards such as short circuits. Contents of the invention [0003] The purpose of the present invention is to provide a weather-resistant aluminum alloy overhead cable with a composite resin sheath, which can improve the problems existing in the prior art, and utilize the characteristics of the composite resin, which is light in weight and good in waterproof per...

Claims

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Application Information

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IPC IPC(8): H01B7/17H01B7/28H01B7/282H01B7/20
CPCY02A30/14
Inventor 陈永保
Owner ANHUI SHUANGCHENG WIRE & CABLE CO LTD